[Linux-kernel-mentees] [PATCH v2] checkpatch: add fix option for NETWORKING_BLOCK_COMMENT_STYLE
lukas.bulwahn at gmail.com
Wed Nov 25 07:19:35 UTC 2020
On Wed, Nov 25, 2020 at 8:02 AM Aditya <yashsri421 at gmail.com> wrote:
> On 22/11/20 12:22 pm, Lukas Bulwahn wrote:
> > On Thu, Nov 19, 2020 at 11:44 AM Aditya <yashsri421 at gmail.com> wrote:
> >> On 19/11/20 12:30 am, Lukas Bulwahn wrote:
> >>> On Mi., 18. Nov. 2020 at 18:40, Aditya Srivastava <yashsri421 at gmail.com>
> >>> wrote:
> >>>> Currently, checkpatch warns us for files in 'net/' and 'drivers/net',
> >>>> if we use an empty '/*' line for comment and contents of comments are
> >>>> in next line
> >>>> E.g., running checkpatch on commit 0d52497ac8ee ("iwlwifi: pcie: remove
> >>>> the refs / unrefs from the transport") reports this warning:
> >>>> WARNING: networking block comments don't use an empty /* line, use /*
> >>>> Comment...
> >>>> + /*
> >>>> + * If the TXQ is active, then set the timer, if not,
> >>>> Provide a fix by appending the current line contents to previous line
> >>>> and removing the current line
> >>> Patch generally looks good.
> >>> Can you check how many comments in net actually follow that style and how
> >>> many follow another style?
> >> In drivers/net:
> >> Wrong style: 14695 lines
> >> Correct style: 147961 lines (ie around 10 times)
> >> In net/:
> >> Wrong style: 5090 lines
> >> Correct style: 30485 lines
> > Can you find out where the wrong style is used?
> > Maybe the documentation is a bit outdated.
> > For example, some drivers and some subdirectories might have settled
> > for another commenting style.
> > I guess you can submit the fix option, but it could be that the whole
> > rule/feature is broken anyway... so I do not know if that fix is of
> > any good...
> > I think it is better to actually understand, document and encode the
> > current rule that applies.
> > Can you provide an evaluation where the different styles for
> > commenting are aggregated in a good way?
> > E.g., consistently within a file with style XYZ; mixed style but
> > 80-90% are of style ABC; consistent within a directory.
> > If you think some cases are in the wrong style for some specific
> > files, simply send a patch correcting the commenting style and see.
> Hi Lukas
> I have generated the reports regarding the comments used in various
> files at net/ and drivers/net.
> Directory wise reports:
Can you sort that by the overall number of comments per directory?
> File wise reports:
> Some files in 'net/' follow the accepted syntax, such as:
> 'net/batman-adv => 985 0'.
> However, some completely not, such as:
> 'net/ax25 => 0 103'.
> Some even follow mixed syntax such as:
> 'net/netfilter => 87 125'.
> Similarly for drivers/net:
> drivers/net/ethernet/mellanox/mlxsw => 1071 0
> completely follow accepted syntax.
> drivers/net/wireless/ralink/rt2x00 => 98, 2082
> follow unaccepted syntax largely.
> whereas files such as drivers/net/wireless/ath/ath5k => 304, 486
> follow mixed syntax.
> It seems to me as the documentation might be outdated, as you had also
> suggested earlier, or maybe users are unaware of the documentation and
> just use the syntax for conserving consistency of the code.
> What do you think?
I think it largely depends on the history of the code and developers
that take care...
We might just start to ask the larger areas to modify the rule for
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